Arizona Diamondbacks vs San Diego Padres Prediction, Preview and Odds - 07/08/2026

Game Time: 10:00 pm ET, Wednesday, July 8, 2026

Venue:  Petco Park, San Diego, CA

Where to Watch:  ESPN 

DraftKings:  Moneyline odds:  Diamondbacks +129, Padres -156; Over/Under:  7.5 runs

Bet365:  Moneyline odds:  Diamondbacks +130, Padres -155; Over/Under:  7.5 runs

BetMGM:  Moneyline odds:  Diamondbacks +125, Padres -155; Over/Under:  8 runs

Arizona Diamondbacks:  45-45 (2nd place, NL West)

San Diego Padres:  44-46 (3rd place, NL West)

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Arizona Diamondbacks:  4-6 last 10

San Diego Padres:  1-9 last 10

The Diamondbacks are entering this series off a loss and lost their 3-game series against the Milwaukee Brewers 2-1 in their last series. They enter this game with a 45-45 record overall and have a road record of 18-25. This is the 3rd game of a 4-game series with the Padres on Wednesday with the 2nd game still to be played on Tuesday. The Diamondbacks won the series opener on Monday. Their offense ranks 26th in the MLB with a .692 OPS. Zac Gallen is their starting pitcher on Tuesday while rookie pitcher José Cabrera is making his start in this game on Wednesday. He is 0-1 with a 4.73 ERA this season. His team lost their last 3 straight games this season with him making an appearance. In his last MLB regular season appearance, he allowed 3 ER, 1 HR, and 3 BB with 3 SO on 6 hits through 3.1 IP against the Milwaukee Brewers.

The Padres are entering this series off a win and lost their 4-game series against the Los Angeles Dodgers 3-1 in their last series. They enter this game with a 44-46 record overall and have a home record of 23-22. This is the 3rd game of a 4-game series with the Diamondbacks on Wednesday with the 2nd game of this series still to be played on Tuesday. The Padres lost the 1st game of this series on Monday. Their offense ranks 30th in the MLB with a .671 OPS. Germán Márquez is their starting pitcher on Tuesday while Michael King is making his start in this game on Wednesday. He is 5-7 with a 3.52 ERA this season. His team lost their last 2 straight games this season with him making an appearance. In his last MLB regular season start, he allowed 2 earned runs, 0 homers, and 2 walks with 5 strikeouts on 3 hits through 6 innings pitched against the Los Angeles Dodgers.

The current betting odds have the Padres listed as a favorite in this game according to Draftkings Sportsbook. The Padres haven't looked good in their games this season with their 44-46 record overall, but that record has them right near the top of the NL West. They have looked a lot better in their own ballpark though with their 23-22 home record this season. Meanwhile, the Diamondbacks haven't looked great in their games this season with their 45-45 record overall which has them right in the middle of the NL West. They have been a bad road team too with their 18-25 road record this year. The Padres have looked terrible lately as they are 1-9 in their last 10 games and have been in a big slump. They will be looking to pull themselves out of it in this very important divisional series though, and the Diamondbacks haven't looked great themselves lately, going 4-6 in their last 10 games. They both have 2 of the worst offenses in the league too, so pitching is going to be key in this one and the Padres do have the edge there. The Padres are going with King in this one and he hasn't looked bad this season. He is 5-7 with a 3.52 ERA and he hasn't been giving up many runs. The team has lost 2 games in a row now with him starting, but he only gave up 2 earned runs in his last start and that has been a common theme for him. The Diamondbacks are going with Cabrera in this one and he hasn't looked great this season. He is 0-1 with a 4.73 ERA and hasn't had the best start to his career. He gave up 3 earned runs in his last start which has been a common theme for him and the team has lost 3 games in a row now with him starting too. The Padres are going to be desperate to start turning things around soon, so look for them to take advantage of this pitching matchup at home. The best way to place a bet here is on the Padres to win this game.

Diamondbacks Padres Prediction:  Our MLB Pick for Wednesday, July 8, 2026 (10:00 pm ET start time) is Padres 4 Diamondbacks 3.

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Arizona Diamondbacks: 17-35 (-18.7 units) on the moneyline when the total is 7 to 7.5. 49-59 (-5.1 units) on the moneyline vs. an NL starting pitcher whose WHIP is 1.250 or better. 98-83 (-7.3 units) on the moneyline when playing against a team with a losing record. 26-18 UNDER vs. an NL team with a team batting average of .255 or worse.

San Diego Padres: 233-192 (+20.3 units) on the moneyline in all games. 123-88 (+7.7 units) on the moneyline in home games. 169-138 (+15 units) on the moneyline against right-handed starters. 23-17 UNDER vs. an NL team with a slugging percentage .400 or worse on the season.

Arizona Diamondbacks:  M. Soroka (SP) Fifteen Day IL - Lower-Body. J. Lawlar (LF) Ten Day IL - Hamstring. R. Nelson (SP) Sixty Day IL - Elbow. J. McCann (C) Ten Day IL - Quad. B. Walston (SP) Sixty Day IL - Elbow. C. Mena (SP) Sixty Day IL - Shoulder. A. Puk (RP) Sixty Day IL - Elbow. C. Burnes (SP) Sixty Day IL - Elbow. J. Martinez (RP) Sixty Day IL - Elbow. A. Saalfrank (RP) Sixty Day IL - Shoulder.

San Diego Padres:  F. Fermin (C) Ten Day IL - Head. R. Vasquez (SP) Fifteen Day IL - Ankle. J. Adam (RP) Fifteen Day IL - Shoulder. D. Morgan (RP) Fifteen Day IL - Knee. L. Giolito (SP) Fifteen Day IL - Elbow. J. Estrada (RP) Fifteen Day IL - Knee. R. Laureano (LF) Sixty Day IL - Hip. N. Pivetta (SP) Sixty Day IL - Elbow. M. Waldron (SP) Fifteen Day IL - Arm. B. Hoeing (RP) Sixty Day IL - Elbow. J. Musgrove (SP) Sixty Day IL - Elbow.

"You can feel it. He's driving fastballs. He's not picking at the zone. I think there's just a very big presence on the mound now, where he's feeling like any pitch [he] can throw now is going to be located, and it's going to be a quality pitch. I think he's doing everything with conviction." - Torey Lovullo on Brandon Pfaadt after his team’s win against the Padres in their game on Monday.

“That didn’t look good, feel good, taste good. We’ve got to wash that off real quick and get back at it.” - Craig Stammen after his team’s loss against the Diamondbacks in their game on Monday.

Ketel Marte (S) 2B

Geraldo Perdomo (S) SS

Corbin Carroll (L) RF

Gabriel Moreno (R) C

Lourdes Gurriel Jr. (R) DH

Max Kepler (L) LF

Nolan Arenado (R) 3B

Ildemaro Vargas (S) 1B

Tommy Troy (R) CF

Fernando Tatis Jr. (R) RF

Jake Cronenworth (L) 2B

Manny Machado (R) 3B

Gavin Sheets (L) 1B

Ty France (R) DH

Jackson Merrill (L) CF

Samad Taylor (R) LF

Sung-Mun Song (L) SS

Rodolfo Durán (R) C

Batting Average:  Jordan Lawlar (.316)

Hits:  Ketel Marte (92)

Home Runs:  Ketel Marte (17)

RBI:  Ketel Marte (54)

Stolen Bases:  Geraldo Perdomo (14)

Wins:  Michael Soroka (8)

Saves:  Paul Sewald (20)

ERA:  Taylor Clarke (2.06)

Batting Average:  Samad Taylor (.326)

Hits:  Fernando Tatis (98)

Home Runs:  Manny Machado (18)

RBI:  Manny Machado (51)

Stolen Bases:  Fernando Tatis (21)

Wins:  Randy Vásquez (6)

Saves:  Mason Miller (22)

ERA:  Mason Miller (0.98)

Managers:

Arizona Diamondbacks: Torey Lovullo (10th season)

San Diego Padres: Craig Stammen (1st season)